One morning Bina downloaded songs from the internet This increased her collection by 50% However, in the afternoon a - Physics -

Question

One morning Bina downloaded songs from the internet This
increased her collection
by 50% However, in the afternoon a virus destroyed 50% of her total
collection If Binas collection then numbered 300 songs, how manydid
she have at the start of the day?1) 2002) 3003) 400
4) 600

Devilious.. Angel · Accepted Answer

x songs at the start now, 50% added so we havex+x/2
songs=3x/2 songs
50% of 3x/2 songs deleted implies we now are left
with3x/2/2 songs(50% is half of total)which
is3x/4
3x/4=300 = x=400

One morning Bina downloaded songs from the internet. This increased her collectionby 50%.However, in the afternoon a virus destroyed 50% of her total collection.If Binas collection then numbered 300 songs, how manydid she have at the start of the day?1) 2002) 3003) 4004) 600

One morning Bina downloaded songs from the internet. This increased her collection
by 50%.However, in the afternoon a virus destroyed 50% of her total collection.If Binas collection then numbered 300 songs, how manydid she have at the start of the day?1) 2002) 3003) 400
4) 600